Home / 11,087.20-15,301.88-6,371.38

Finding the Fourth Proportional to 11,087.20, 15,301.88 and 6,371.38

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Solution

The fourth proportional to 11,087.20, 15,301.88 and 6,371.38 is: 8,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.20 : 15,301.88 = 6,371.38 : x
  2. Step 2: Convert to fraction form
    11,087.20/15,301.88 = 6,371.38/x
  3. Step 3: Cross multiply
    11,087.20x = 15,301.88 × 6,371.38
  4. Step 4: Simplify right side
    11,087.20x = 97,494,092.19
  5. Step 5: Solve for x
    x = 97,494,092.19/11,087.20
  6. Step 6: Final answer
    x = 8,793.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.